Tripod



(No Model.) G.. S. CHASE.

'IFRIPOH. No. 281,239. Patented July 17, 1883.

Hungary/ jkuen r llNiTED STATES ATENT Fries.

GEORGE S. CHASE, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO FRANK ARMSTRONG, 2 OF BRIDGEPORT, CONNECTICUT.

TRIPOD.

SPECIFICATION forming part of Letters Patent No. 281,239, dated July 17, 1883.

Application filed January 30, 1883.

To all lull/0122,- it may concern Be it known that I, Gnonon S. CHASE, a citizen of the United States, residing at the city of New York, in the county of NewYork and State of New York, have invented certain new and useful Improvements in Portable Stands for Vises; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

invention relates to that class of devices by which vises and other analogous mechanical appliances are supported when in use, and has for its object to enable the vise to be raised or lowered at will, and to be placed in any necessary position either in a shop or outof-doors, without regard to roughness of the floor or inequalities in the ground, thereby rendering a bench wholly unnecessary, while at the same time the device shall be simple in construction, economical in cost, and of ready, simple, and positive adjustment.

With these ends in view my invention consists in a bed-piece or table on which the vise or other apparatus is to be placed, having three or more leg-sockets attached by bolts, or hinged in such a manner that they can befolded up or opened out at any desired angle, and when adjusted in the desired position, with the bed-plate at the right height from the ground and in a level position, the said sock cts are rigidly secured in such position by tightening up setscrews which pass through. hearings in the ends of the leg-sockets and impinge against the top of the table, all of which will be more fully hereinafter described, and specifically designated by the claims.

In order that those skilled in the art to which my invention appcrtains may understand more fully how to make and use my im provement, I will proceed to describe the same in detail, referring by letters to the accompanying drawings, forming part of this specification, in which- Figure l is a perspective view of my improvement, showing the manner in which the leg-sockets are adjusted in proper position. Fig. 2 is a detail view, showing the leg-socket disengaged from the lugs upon the bed-plate (N0 model.)

Fig. 3 is a plan view of the table; and Fig. i is a modification showing a set-screw operated from below and acting against the projecting end of the leg socket, the shape of which is slightly altered.

Similar letters denote like parts in the several figures.

A is the table or bcd-plate, which is provided at its edges with three or more pairs of projections or lugs, c a, between which are pivoted the sockets B for the legs C. These sockets are not placed at equal distances apart; but one of the sides of the bedplate is shorter than the others, for convenience in use, three legs being the number ordinarily used. 6 5

It will be noticed that one pair of lugs projects outward in a line drawn from the center of the table; but the other two pairs project outward in substantially a parallel line. This is an important feature of my invention, as it prevents the heads of the set-screws from interfering with the free operation of the han dles of the stock in pipe-cutting and other similar operations. The sockets are so constructed as to fit between the pairs of lugs, and are provided at their upper ends with arms D, which project beyond the pivot and over the edge of the bed-plate, and are pro vidcd with bearings for set-screws E. These set-screws, after passing through said bearings, impinge against the top of the bed-plate. They are provided at their upper ends with square or angular heads, which may be engaged by a wrench.

In practice, in order to overcome any unevenness in the floor or ground, or to raise or lower the vise or other appliance upon the stand, it will only be necessary to use a common pocket-wrench to turn the screws, the points of which, impinging against the top of the table, will raise or lower the leg-sockets, which turn upon their pivots, and when properly adjusted will securely and positively hold them in the desired position, the pivot acting as the fulcrum of a lever of the first order.

I do not desire to limit myself to the exact details of construction shown, but may vary the details thereof withoutdeparting from the spirit of my invention. For instance, as illustrated in Fig. 3, the screws may pass through 100 the bed-plate itself, instead of through the arms of the leg-sockets, and impinge against plate and are adjusted by set-screws, substantially as described.

2. In an adjustable stand for Vises, the table or bed-plate having pairs of lugs between which the leg-sockets are pivoted, and pro vided with set-screws which pass through bearings in the ends of the leg-sockets and bear against the surface of the table, whereby the bed-plate and its contents may be raised or lowered, as may be desired.

In testimony whereof I afliX my signature in presence of two witnesses.

GEORGE SIDLEY CHASE.

Witnesses:

CLEMENT GOULD, J AS. SLAroR. 

